Regardless of which one to look at a few points:
1, the brand of the lamp beads (foreign brands are more guaranteed some of the current),
2, efficient heat dissipation: water-cooled and air-cooled in two ways, the air-cooled a little simpler (can't say which is good, which is not good, to achieve the effect of heat dissipation on the good), it is important to design a reasonable;
3, a variety of control systems: Push-button control, touch-screen control, infrared sensor control, etc.;